Charles klatjbebg



c. KLAUBERG.

BRUSH FOR CLEANING BOTTLES.

APPLICATION FILED FEB. I0, 1920.

Patented Ma y 10, 1921.

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gwuemioz 1 UlTED srs ram" tr o BRUSH FOR CLEANING BOTTLES. 7

Specification of Letters Patent.

Patented May 1Q, 1921.

Application filed. February 10, 1920. Serial No. 357,541.

provide a brush of this type which is of very simple and inexpensiveconstruction but efficient and durable in operation.

A special object is to simplify and improve the pivot connection betweenthe handle shank and brush head, whereby said connection will bestrengthened and movement of the brush head on the pivot restricted tothe desired extent. Another object is to simplify and improve thestructure of the brush head, whereby the face of the brush and the tuftat the end may be formed more readily and cheaply than heretofore. Otherobjects will appear as the description proceeds.

The invention will be first hereinafter described in connection with theaccompanying drawings, which constitute part of this specification, andthen more specifically defined in the claims at the end of thedescription.

In the accompanying drawings, wherein similar reference characters areused to designate corresponding parts throughout the several viewsFigure 1 is a perspective view of a brush constructed substantially inaccordance with this invention.

Fig. 2 is a section through the brush head across the channel portionthereof where the pivot pin connects the handle shank thereto, and

Fig. 3 is a longitudinal section through the brush head, showing moreclearly how the brush is attached to the core member.

The brush head 1 is pivotally connected to the end of the handle shank 2by means of a pin or rivet 3 passed through the chan nel portion at ofthe core member 10 of said brush head and through a bore 5 formed partlyin each of the facing sides of a lapped part 6 at the end of the shank.Said bore is spaced from the extremity of the shank a distance somewhatgreater than the depth of the channel 4 below the pivot, so that saidprojecting end portion of the lapped part 6 will limit the pivotalmovement of the brush head on the shank, as shown best in Fig. 3. Whenthe brush head is straightened out, the shank may lie in the channel 4:which preferably extends at least half the length of the core member 10.

The outer end portion of the core 10 is made tubular, as at 7, saidtubular portion extending in line with the channel t. The brush properconsists of a straight section of cylindrical brush of the type formedby fastening transverse bristles 8 at intermediate points in a twistedwire core 9. A section of such brush is cut to a length greater than thecore 10 of the brush head 1 and is attached thereto by bending one endof the wire core 9 over the outside of the brush head core 10 so that itextends into the outer end of the tubular portion 7, while the other endof said wire is bent to lie in the end of the channel 4. The bristlescarried by the portion of the wire which extends into the tubularportion 7 are bunched together by the walls of said tubular portion soas to form the end tuft 11 which greatly assists in cleaning the bottomsof the bottles from the inside. As shown in Fig. 2, the bristles of thebody portion of the brush almost entirely surround the core 10.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is 1. In a brush of thecharacter described, the combination with a brush head having a channelportion, of a rigid handle shank having a lapped end portion theadjacent surfaces of which lie flat against each other and the outersurfaces of which are parallel, there being a bore formed partly in eachof said lapping portions constituting a pivot bearing, and a pivot pinpassed through the sides of the channel and said bearing for connectingthe brush and shank.

2. In a brush of the character described, the combination with a brushhead having a channel portion, of a rigid handle shank having a lappedend'portion the adjacent surfaces of which lie flat against each otherand the outer surfaces of which are parallel, there being a bore formedpartly in each of said lapping portions constituting a pivot bearing,and a pivot pin passed through 5 the sides of the channel and saidbearing for connecting the brush and shank, said bore being spaced fromthe extremity of the shank to provide a stop to engage the base of thechannel for limiting the pivotal movement of the brush head on theshank. 10

In testimony. whereof I have signed my name to this specification.

CHARLES KLAUBERG.

